(maint) Release Prep v6.3.1

[sheenaajay]

Added latest commits to the main branch too.

[CLAassistant]

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[sheenaajay]

https://tickets.puppetlabs.com/browse/IAC-711
Above ticket is opened for the failures on RedHat 7 on cloud CI

[sheenaajay]

Test Results on failing platforms - Puppet Agent 7
pid 65709 exit 0 Successful on 2 nodes: ["aghast-half.delivery.puppetlabs.net, redhat-8-x86_64", "salient-tung.delivery.puppetlabs.net, redhat-7-x86_64"] Checking connectivity for ["aghast-half.delivery.puppetlabs.net", "salient-tung.delivery.puppetlabs.net"] Connectivity check PASSED. ➜
Test Results on failing platforms - Puppet Agent 6
pid 72184 exit 0 Successful on 2 nodes: ["swank-necessity.delivery.puppetlabs.net, redhat-8-x86_64", "exact-dazzler.delivery.puppetlabs.net, redhat-7-x86_64"] Checking connectivity for ["exact-dazzler.delivery.puppetlabs.net", "swank-necessity.delivery.puppetlabs.net"] Connectivity check PASSED. ➜